Randy Akahoshi, Sue Graham, Judi Myers, Ann McCabe, Marie Nagano, Deb Thom & Carol McLaughlin
About Us
We are an affiliate club of the Australian Shepherd Club of America (ASCA). The founding membership was drawn from three counties. Today Tri-County’s membership comes primarily from Los Angeles, Orange, Riverside, and San Diego Counties with a few members in San Bernardino and Ventura Counties.
Although we are primarily dedicated to the development of Australian Shepherds and their working abilities, all breeds are welcome to join the club and can fully participate in club activities. Membership in ASCA is not required. Our affiliate club holds stockdog, rally, obedience, and agility trials, as well as training clinics.
Our club is well known for its friendly and helpful members who are in all stages of development from National Champions to beginners. Members are also heavily involved in other dog-related activities such as agility, obedience, conformation, rally, therapy, etc. and freely aid fellow members (and guests) in these other areas.
Although we are primarily dedicated to the development of Australian Shepherds and their working abilities, all breeds are welcome to join the club and can fully participate in club activities. Membership in ASCA is not required. Our affiliate club holds stockdog, rally, obedience, and agility trials, as well as training clinics.
Our club is well known for its friendly and helpful members who are in all stages of development from National Champions to beginners. Members are also heavily involved in other dog-related activities such as agility, obedience, conformation, rally, therapy, etc. and freely aid fellow members (and guests) in these other areas.
MARK YOUR CALENDARS!
October 18-19, 2025 - ASCA® Sanctioned ALL BREED Agility Trial
Saturday – 2 rounds of Jumpers, 1 round of Gamblers, 2 rounds of Regular
Sunday – 1 round of Gamblers, 2 rounds of Regular, 2 rounds of Jumpers
Judge: Mark Buehl
Location: Diamond Dogs K-9 Events, 3349 Riverside Dr., Chino, CA 91710
Click here for PREMIUM
Saturday – 2 rounds of Jumpers, 1 round of Gamblers, 2 rounds of Regular
Sunday – 1 round of Gamblers, 2 rounds of Regular, 2 rounds of Jumpers
Judge: Mark Buehl
Location: Diamond Dogs K-9 Events, 3349 Riverside Dr., Chino, CA 91710
Click here for PREMIUM
November 20-23 2025 - ASCA® Sanctioned Farm Trials and Arena Stockdog Trials
Thurs. November 20, 2025 - Two Farm Trials, Cattle, Ducks, Geese, Sheep
Fri.-Sun. November 21-23, 2025 - Two Arena Trials each day, Cattle, Sheep, Ducks
Judges: Canby Scott, John Knepper and Jim McKay
Location: Diamond Dogs K-9 Events, 3349 Riverside Dr., Chino, CA 91710
Click here for FARM TRIAL PREMIUM; Cattle Farm Trial 1 Instructions; Cattle Farm Trial 1 Map; Duck Farm Trial 1 Instructions; Duck Farm Trial 1 Map; Sheep Farm Trial 1 Instructions; Sheep Farm Trial 1 Map; Cattle Farm Trial 2 Instructions; Cattle Farm Trial 2 Map; Geese Farm Trial 2 Instructions; Geese Farm Trial 2 Map; Sheep Farm Trial 2 Instructions; Sheep Farm Trial 2 Map
Click here for STOCKDOG ARENA TRIAL PREMIUM
Click here for ASCA Stockdog Entry Form for both Farm and Arena Trials
Thurs. November 20, 2025 - Two Farm Trials, Cattle, Ducks, Geese, Sheep
Fri.-Sun. November 21-23, 2025 - Two Arena Trials each day, Cattle, Sheep, Ducks
Judges: Canby Scott, John Knepper and Jim McKay
Location: Diamond Dogs K-9 Events, 3349 Riverside Dr., Chino, CA 91710
Click here for FARM TRIAL PREMIUM; Cattle Farm Trial 1 Instructions; Cattle Farm Trial 1 Map; Duck Farm Trial 1 Instructions; Duck Farm Trial 1 Map; Sheep Farm Trial 1 Instructions; Sheep Farm Trial 1 Map; Cattle Farm Trial 2 Instructions; Cattle Farm Trial 2 Map; Geese Farm Trial 2 Instructions; Geese Farm Trial 2 Map; Sheep Farm Trial 2 Instructions; Sheep Farm Trial 2 Map
Click here for STOCKDOG ARENA TRIAL PREMIUM
Click here for ASCA Stockdog Entry Form for both Farm and Arena Trials
February 14-15, 2026 - ASCA® Sanctioned ALL BREED Agility Trial
Judge: TBD
Location: Diamond Dogs K-9 Events, 3349 Riverside Dr., Chino CA 91710
Click here for Premium COMING SOON
Judge: TBD
Location: Diamond Dogs K-9 Events, 3349 Riverside Dr., Chino CA 91710
Click here for Premium COMING SOON
July 18-19 2026 - ASCA® Sanctioned ALL BREED Agility Trial
Judge: TBD
Location: Huntington Beach, CA
Click here for Premium COMING SOON
Judge: TBD
Location: Huntington Beach, CA
Click here for Premium COMING SOON